无线传感器网络中基于需求差异的特殊节点协助通信策略

Sensor nodes have quite limited abilities, which have become a bottleneck in the performance breakthrough for wireless sensor networks. A good way to change this situation is to introduce special nodes with mobility or greater computing and communicating abilities. But many problems exist in the technology of communication assisted by special nodes, so its efficacy is restricted. On the basis of user requirement differences, this project, aimed at solving the current problems, will be carried out from the following aspects: (1) to explore the super link construction scheme based on aforehand data drainage to solve the problem of loading balance of data traffic and meet the requirements of network sustainability; (2) to study the super node deployment modes on the basis of energy consumption relationship among different hot areas and theoretically prove the best position of super nodes to enormously improve network performance and satisfy its simplicity requirements; (3) to plan the movement manners of mobile sinks based on the distance control of adjacent rendezvous points to reduce energy consumption of data delivery and satisfy the real-time demands; (4) to design movement strategies of mobile relays for connectivity recovery based on defending the second attacks and meet the demands of invulnerability. The above research will provide new perspectives and methods for achieving ideal efficacy of special nodes and sharply improve the network performance.

无线传感器网络的节点能力十分有限，成为制约网络性能突破的瓶颈。引入具有移动功能或具有更强计算/通信能力的特殊节点，是改变这一局面的重要途径。然而，特殊节点协助通信技术存在诸多问题，故特殊节点的功效未能充分发挥。本项目拟从用户需求差异出发，旨在解决当前存在的问题，并从以下方面开展特殊节点协助通信策略研究：（1）探索基于预先数据引流的超级链路构造方案，从根源上解决流量负载均衡问题，满足网络的持久性需求；（2）研究基于热区能耗关联的超级节点部署模式，论证超级节点的最优位置，显著提升网络性能并满足网络的简易性需求；（3）规划基于站点间距控制的移动基站运动方式，减少节点的数据传输能耗，满足应用的实时性需求；（4）设计基于二次抵御结合的移动中继迁移策略，实现快速连通恢复，增强网络抵御二次攻击的能力，满足应用的抗毁性需求。以上研究为充分发挥特殊节点功效和显著提高网络性能提供新思路和新方法。

无线传感器网络的节点能力十分有限，成为制约网络性能突破的瓶颈。引入具有移动功能或具有更强计算/通信能力的特殊节点，是改变这一局面的重要途径。本项目研究无线传感器网络的数据引流方案、超级节点部署方案、移动基站运动方案和移动节点连通恢复方案，旨在增强网络的多方面性能。本项目提出无线传感器网络的负载均衡数据引流方案、基于抗毁能力的连通恢复方案、基于孤立分区的移动数据收集方法和基于协作服务的充电调度方法，显著提高网络的负载均衡程度、可靠性和运行效率等。本项目发表IEEE期刊论文12篇，其中IEEE Transactions论文5篇，IEEE Journal论文2篇，IEEE Letters论文3篇，IEEE Magazine论文1篇，IEEE Access论文1篇，综述论文2篇。申请发明专利4项，其中已授权2项。撰写并录用专著章节1章。本项目为充分发挥特殊节点功效和显著提高网络性能提供新思路和新方法。